Image navigation system and method

• US 7,596,255 B2
• Filed: 11/26/2003
• Issued: 09/29/2009
• Est. Priority Date: 11/26/2003
• Status: Active Grant

• Current Assignee: GE Medical Systems Information Technologies Incorporated (General Electric Company)
• Original Assignee: GE Medical Systems Information Technologies Incorporated (General Electric Company)
• Inventors: Samara, Yaseen, Mathew, Prakash Parayil
• Primary Examiner(s): TUCKER, WESLEY J
• Application Number:
  US10/723,221
• Publication Number:
  US 20050111761A1
• Time in Patent Office: 2,134 Days
• Field of Search: 382/128, 382/130, 382/131, 715/719, 715/786, 715/974
• US Class Current: 382/130
• CPC Class Codes: G06T 7/0012 Biomedical image inspection
• CPC Class Codes: Y10S 715/974 Slider control as on-screen object in operator interface

Abstract

A navigational tool is provided for selection of images of interest in large series of images. Difference indices are calculated between adjacent images in the series, and the indices are used to generate a navigational tool which can be presented as a graphical representation of differences between the images. A viewer may select specific locations or sets of images for viewing by manipulation of a virtual tool based upon the representation of the difference indices. The technique thus provides a highly efficient and intuitive tool for location of images in a series where particular features of interest or changes may occur, permitting rapid access and viewing of these images.

Claims

1. A method for processing image data comprising:

comparing with a processor image data representative of a plurality of medical images, wherein the plurality of medical images represent spatially adjacent subject matter;

calculating with a processor a level of change of the image data from one image to the next in the plurality of medical images; and

presenting a viewer with the calculated levels of change of the image data for the plurality of medical images.

2. The method of claim 1, wherein calculating the level of change comprises analyzing absolute differences between adjacent images in the plurality of images.

3. The method of claim 2, wherein the absolute differences are analyzed on a pixel-by-pixel basis.

4. The method of claim 1, wherein calculating the level of change of the image data includes calculating change due to noise in the image data, and not including changes due to noise in the presented calculated levels of change.

5. The method of claim 1, wherein the presented calculated levels of change comprises a graphical representation of progressive change between images of the plurality of images.

6. The method of claim 5, comprising presenting the viewer with a virtual tool for navigating though the plurality of images based upon the progressive change between the images.

26. The method of claim 1, wherein calculating a level of change comprises:

calculating an absolute value of a difference between corresponding areas in a pair of images; and

accumulating the absolute values of the differences to determine a difference index for a pair of images.

7. A method for diagnosing a patient, comprising:

acquiring a plurality of reconstructed images via a medical imaging system;

comparing image data representative of the plurality of reconstructed images; and

generating a scout navigation tool by quantifying a level of change of the image data from one reconstructed image to the next in the plurality of reconstructed images, the scout navigation tool including a graphical representation of progressive change between reconstructed images of the plurality of reconstructed images and a virtual tool for navigating though the plurality of reconstructed images based upon the level of change.

8. The method of claim 7, comprising displaying the scout navigation tool on a viewable screen.

9. The method of claim 8, comprising receiving inputs from a viewer via the scout navigation tool and displaying reconstructed images from the plurality of reconstructed images based upon the inputs.

10. The method of claim 8, comprising receiving inputs from a viewer via the scout navigation tool and storing reconstructed images from the plurality of reconstructed images based upon the inputs.

11. The method of claim 8, comprising receiving inputs from a viewer via the scout navigation tool and processing reconstructed images from the plurality of reconstructed images based upon the inputs.

12. The method of claim 8, comprising displaying the scout navigation tool adjacent to an image viewing region of the viewable screen.

13. The method of claim 7, wherein the plurality of reconstructed images represent a same subject of interest at different points in time.

14. The method of claim 7, wherein the plurality of reconstructed images represent spatially adjacent subject matter at generally the same point in time.

15. The method of claim 7, wherein the level of change is quantified by determining absolute differences between adjacent reconstructed images in the plurality of reconstructed images.

16. The method of claim 15, wherein the absolute differences are determined on a pixel-by-pixel basis.

17. The method of claim 16, wherein quantifying the level of change of the image data includes quantifying change due to noise in the image data, and not including changes due to noise in the graphical representation.

27. The method of claim 7, wherein quantifying the level of change of the image data from one reconstructed image to the next comprises:

calculating an absolute value of a difference between corresponding areas in the reconstructed images; and

summing the calculated absolute values to determine a difference index for a pair of reconstructed images.

18. A system for processing image data comprising:

a memory device for storing image data;

processing circuitry configured to compare image data representative of a plurality of images acquired via a medical imaging system and not as video, and to generate a scout navigation tool by computing a level of change of the image data from one image to the next in the plurality of images, the scout navigation tool including a graphical representation of progressive change between images of the plurality of images and a virtual tool for navigating through the plurality of images based upon the level of change.

19. The system of claim 18, comprising a user viewable display for displaying the scout navigation tool and images from the plurality of images based upon use inputs.

20. The system of claim 19, comprising a user input device for selection of images for viewing from the plurality of images via manipulation of the virtual tool.

21. The system of claim 20 wherein the virtual tool includes a slider displayed adjacent to the graphical representation.

22. A system for diagnosing a patient, comprising:

means for comparing image data representative of a plurality of diagnostic images of the patient acquired via a medical imaging system, wherein the plurality of images represent spatially adjacent subject matter,

means for calculating a level of change of the image data from one image to the next in the plurality of images; and

means for presenting a viewer with the calculated levels of change of the image data for the plurality of images.

23. A system for processing image data comprising:

means for comparing image data representative of a plurality of images acquired via a medical diagnostic imaging system; and

means for generating a scout navigation tool by quantifying a level of change of the image data from one image to the next in the plurality of images, the scout navigation tool including a graphical representation of progressive change between images of the plurality of images and a virtual tool for navigating though the plurality of images based upon the level of change, wherein quantifying a level of change of the image data includes quantifying change due to noise in the image data.

24. A computer program provided on a computer readable medium and containing computer executable instructions for processing image data, comprising:

at least one computer readable medium; and

code stored on the at least one computer readable medium encoding routines for comparing image data representative of a plurality of images acquired via a medical imaging system, calculating a level of change of the image data from one image to the next in the plurality of images, and presenting a viewer with the calculated levels of change of the image data for the plurality of images, wherein the plurality of images represent spatially adjacent subject matter.

25. A computer program provided on a computer readable medium and containing computer executable instructions for diagnosing a patient, comprising:

at least one computer readable medium; and

code stored on the at least one computer readable medium encoding routines for comparing image data representative of a plurality of images acquired via a medical diagnostic imaging system and not as a video, and generating a scout navigation tool by computing a level of change of the image data from one image to the next in the plurality of images, the scout navigation tool including a graphical representation of progressive change between images of the plurality of images and a virtual tool for navigating through the plurality of images based upon the level of change.